$$\text { For the curve given by } \mathbf { r } ( t ) = \langle 2 \sin t , 5 t , 2 \operatorname { cost } \} \text {, find the unit normal vector. }$$

question 82

Short Answer

$$\text { For the curve given by } \mathbf { r } ( t ) = \langle 2 \sin t , 5 t , 2 \operatorname { cost } \} \text {, find the unit normal vector. }$$

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Definitions:

Oral Auctions

Public sales where goods or services are sold to the highest bidder through verbal bids, often conducted in real-time with an auctioneer.

Sealed Bid Auctions

A type of auction where all bidders submit their bids without knowledge of the bids offered by other participants, often used in government contracts and private sales.

Bid-Rigging

Bid-rigging is an illegal agreement between parties to manipulate the outcome of a bidding process to their advantage, often at the expense of others.

Knockout Auctions

Auctions where bidders are eliminated progressively as the bid value increases until only the highest bidder remains.